MathDB

sigma 1/n^3 <5/4

Source:

October 3, 2010

Inequalityseries summationIMO ShortlistIMO Longlist

Problem Statement

(HUN 2)

Prove that

1+\frac{1}{2^3}+\frac{1}{3^3}+\cdots+\frac{1}{n^3}<\frac{5}{4}